Home / 45,367.70-68,054.23-13,778.81

Finding the Fourth Proportional to 45,367.70, 68,054.23 and 13,778.81

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Solution

The fourth proportional to 45,367.70, 68,054.23 and 13,778.81 is: 20,669.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,367.70 : 68,054.23 = 13,778.81 : x
  2. Step 2: Convert to fraction form
    45,367.70/68,054.23 = 13,778.81/x
  3. Step 3: Cross multiply
    45,367.70x = 68,054.23 × 13,778.81
  4. Step 4: Simplify right side
    45,367.70x = 937,706,159.52
  5. Step 5: Solve for x
    x = 937,706,159.52/45,367.70
  6. Step 6: Final answer
    x = 20,669.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.